Snow Leopardess, who became a mother before returning to race, is contesting favouritism for Saturday’s Randox Grand National after a gamble on the grey mare intensified on Monday.
The popular grey is Star Sports' new favourite for the big race on Saturday - and she could be the first mum to win it.
Trained by Charlie Longsdon, the number one British runner had a foal during a two-year absence from the racecourse.
She returned to training and this year has taken her form to new heights, with an eye-catching success over the Grand National fences last December.
Racegoers were impressed by the display, as she took the obstacles accurately despite never tackling them before.
Three different grey horses have won the Grand National - The Lamb (1868 and 1871), Nicolaus Silver (1961) and Neptune Collonges (2012).
Snow Leopardess is also seeking to become the first mare to triumph in the £1million contest since Nickel Coin in 1951.
Star Sports make the ten-year-old their 8-1 favourite on the back of sustained support.
“With the forecast looking bleak for this weekend's Grand National, we have taken a flurry of bets on Snow Leopardess, who has shortened from 10-1 to 7-1 in the last couple of days," said horse racing trader Jordan Cox.
"As a dashing grey mare with a brilliant backstory, she’s bound to become a popular bet on the day."
Ladbrokes report the galloping grey is their second-worst result in the race behind Delta Work, one of nine possible runners for Gordon Elliott.
The Grade 1 winner heads to Aintree after defeating Grand National legend Tiger Roll at the Cheltenham Festival.
Nicola McGeady of Ladbrokes said: “This year we think Snow Leopardess will be the public horse. Ticking boxes such as being grey, a mare, having a good name, along with a heart-warming tale to boot.”
